Іdentification Of Gasoline In Altered Mixture With Diesel Fuel

IF 0.7 Q4 CHEMISTRY, ANALYTICAL
V. Rudniev, O. Kliuiev, O. Uhrovetskyi
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引用次数: 0

Abstract

The methodological approach to identification of gasoline with an admixture of diesel fuel was presented. The approach involves using of gas chromatography–mass-spectrometry analysis of altered mixture. An algorithm of gas chromatography profile treatment includes analysis of extracted ion chromatogram for searching of polyaromatic hydrocarbons with 2 to 4 aromatic ring, mostly naphthalene, anthracene, phenanthrene and pyrene derivatives. The complex of specified components can be used as indicator of gasoline presence in mixture in the case if its chromatographic profile by total ion chromatogram is typical for diesel fuel. Obtained results show in common high similarity of chromatographic profile of altered diesel fuel and gasoline with small admixture (0.25 vol.%) of diesel fuel. A wrong identification results may be obtained without taking into account presence of pointed polyaromatic hydrocarbons. Such complex cannot be found entirely in pure diesel fuel in initial or altered state because its components are below or about of limit of detection. Determined limit of detection for polyaromatic hydrocarbons (naphthalene, phenanthrene, anthracene, pyrene) is 1.8-2.2 μg/ml.
Іdentification汽油与柴油混合物的变化
介绍了用柴油混合燃料鉴别汽油的方法方法。该方法采用气相色谱-质谱法对改变后的混合物进行分析。气相色谱剖面处理算法包括对提取的离子色谱图进行分析,以寻找含有2 ~ 4个芳香环的多芳烃,主要是萘、蒽、菲和芘衍生物。如果总离子色谱法对柴油的色谱特征是典型的,则特定组分的络合物可以作为汽油存在的指示物。所得结果表明,掺有少量柴油(0.25 vol.%)的柴油与汽油的色谱图谱具有较高的相似性。如果不考虑尖多芳烃的存在,可能会得到错误的鉴定结果。由于其成分低于或接近检测极限,在初始状态或变态的纯柴油中不可能完全发现这种复合物。多芳烃(萘、菲、蒽、芘)的确定检出限为1.8 ~ 2.2 μg/ml。
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来源期刊
CiteScore
1.00
自引率
14.30%
发文量
12
期刊介绍: The journal "Methods and objects of chemical analysis" is peer-review journal and publishes original articles of theoretical and experimental analysis on topical issues and bio-analytical chemistry, chemical and pharmaceutical analysis, as well as chemical metrology. Submitted works shall cover the results of completed studies and shall make scientific contributions to the relevant area of expertise. The journal publishes review articles, research articles and articles related to latest developments of analytical instrumentations.
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